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SERVICE MANUAL FE-2 CHASSIS
MODEL COMMANDER DEST CHASSIS NO. MODEL COMMANDER DEST CHASSIS NO.
KV-21LT1B RM-887 French SCC-Q54C-A KV-21FT2K RM-887 OIRT SCC-Q51E-A
KV-21LT1E RM-887 Spanish SCC-Q53C-A
KV-21LT1K RM-887 OIRT SCC-Q51C-A
KV-21LT1U RM-887 UK SCC-Q52C-A
KV-21LT1
RM-889
RM-887
KV-21FT2
1
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TABLE OF CONTENTS Section Title Page Section Title Page Specifications .................... 3 3. SET-UP ADJUSTMENTS Connectors .................... 5 3-1. Beam Landing .................... 16 Self Diagnostic Software .................... 6 3-2. Convergence .................... 17 3-3. Focus Adjustment .................... 19 1. GENERAL 3-4. Screen (G2), White Balance .................... 19 Switching On the TV and Automatically Tuning .................... 7 4. CIRCUIT ADJUSTMENTS Introducing
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ITEM MODEL Television System Channel Coverage Color System VHF : E2-E12, F2-F10 UHF : E21-E69 PAL, SECAM CABLE TV : S01-S03, S1-S20, B-Q FI rench B/G/H, L, NTSC4.43, NTSC3.58 HYPER : S21-S41 (VIDEO IN) L F02-F10, F21-F69 I UHF : B21-B69 VHF : E2-E12 PAL, SECAM UHF : E21-E69 SH panish B/G/ NTSC4.43, NTSC3.58 CABLE TV : S01-S03, S1-S20 (VIDEO IN) HYPER : S21-S41 VHF : E2-E12, R01-R12 PAL, SECAM UHF : E21-E69, R21-R69 OK IRT B/G/H, D/ NTSC4.43, NTSC3.58 CABLE TV : S01-S03, S1-S20 (VIDEO IN) HYPER :
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Model Name KV-21FT2K KV-21LT1B KV-21LT1E KV-21LT1K KV-21LT1U Item PF al Comb OF F OF F OF F OF F OF PF IP OF F OF F OF F OF F OF RF GB Priority ON F ONOFON F O WF oofer Box OF F OF F OF F OF F OF SN cart 1 ONONONON O SF cart 2 OF F OF F OF F OF F OF FF ront in (3) OF F OF F OF F OF F OF SF cart 4 OF F OF F OF F OF F OF PF rojector OF F OF F OF F OF F OF AF KB in 16:9 mode OF F OF F OF F OF F OF NN orm B/G ONONONOF OF NF orm I ON F OFOF F ON F O NN orm D/K OFON F OFOF F OF NF orm AUS OF F OF F OF
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21 pin connector Pin No 1 2 4 Signal Signal level 1 Audio output B Standard level : 0.5V rms (right) Output impedence : Less than 1kohm* Audio output B Standard level : 0.5V rms 2 (right) Output impedence : More than 10kohm* Audio output A Standard level : 0.5V rms 3 (left) Output impedence : Less than 1kohm* 4 Ground (audio) 5 Ground (blue) 21 6 Audio input A Standard level : 0.5V rms (left) Output impedence : More than 10kohm* 20 19 7 Blue input 0.7 +/- 3dB, 75 ohms positive 18 High state (9.5
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FE-2 SELF DIAGNOSTIC SOFTWARE The identification of errors within the FE-2 chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a continuous flashing LED) and then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant device number will be displayed through
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SECTION 1 GENERAL 7 The operating instructions mentioned here are partial abstracts from the ‘Operating Instruction Manual’. The page numbers of the ‘Operating Instruction Manual’ remain as in the manual. 5 A new menu appears on the screen asking you to check Switching On the TV and Automatically Tuning Please confirm that that the aerial is connected. Ensure the aerial is connected aerial is connected and then press the OK button to start the automatic Confi
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8 Level 1 Level 2 Level 3 / Function Introducing and Using the Menu System SLEEP TIMER Picture Adjustment Your TV uses an on-screen menu system to guide you through the operations. Use the Mode: Personal The “Sleep Timer” option in the “Timer” menu Contrast Brightness following buttons on the Remote Control to operate the menu system: Colour allows you to select a time period for the TV to Sharpness Hue Reset switch itself automatically into the standby OK mode. 1 Pre
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9 Level 1 Level 2 Level 3 / Function Level 1 Level 2 Level 3 / Function AUTO TUNING 3 After selecting the Channel option, press . Picture Adjustment Picture Adjustment Mode: Personal The “Auto Tuning” option in the “Set Up” Mode: Personal Then press or to select the channel Contrast Contrast Brightness menu allows you to automatically search for Brightness Colour tuning (“C” for terrestrial channels or “S” for Colour Sharpness and store all available TV channels.
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10 Teletext Connecting Optional Equipment Using the following instructions, you can connect a wide range of optional equipment to Teletext is an information service transmitted by most TV stations. The index page of the teletext service (usually page 100) gives you information on how to use the service. To your TV set. (Connecting cables are not supplied). operate teletext, use the remote control buttons as indicated below. Connecting a VCR: To connect a VCR, please refer to Make sure to use a
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11 Troubleshooting Here are some simple solutions to the problems which may affect the picture and sound. Problem Solution No picture (screen is dark) and no •Check the aerial connection. sound. • Plug the TV in and press the button on the front of TV. •If the standby indicator is on, press button on the remote control. Poor or no picture (screen is dark), •Using the menu system, select the “Picture but good sound. Adjustment” menu and select “Reset” to return to the factory settings.
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<= <= <= SECTION 2 DISASSEMBLY KV-21LT1 2-1. Rear Cover Removal 2-2. A Board PWB Removal [ Step 1 ] <= => Remove screw. => <= Release the mains power cable from its securing posts. Remove the rear cover fixing screws indicated. Pull the rear cover away from the front beznet until clear of chassis. Note : Use a cross-head screwdriver with a blade length of at least 200mm. Remove FBT 2-3. A Board PWB Removal [ Step 2 ] support bracket. 2-5. Wire Dressing Release the 2 securing clips located at ei
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2-6. Picture Tube Removal 1 WARNING: 2 BEFORE REMOVING 6 THE ANODE CAP 4 High voltage remains in the CRT even after the power is disconnected. To 7 avoid electric shock, discharge CRT before attempting to remove the anode cap. Short between anode and CRT coated earth ground strap. 3 9 8 Coated Earth Ground Strap 5 1. Discharge the anode of the CRT and remove the anode cap. 2. Release the EHT lead from its CRT support bracket. 3. Unplug all interconnecting leads from the Deflection yoke, degaussi
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=> => KV-21FT2 2-7. Rear Cover Removal 2-8. Chassis Removal and Refitting => => Remove the rear cover fixing screws indicated. Pull the rear To remove the chassis release the clips indicated at opposite cover straight back until clear of chassis. sides of the main bracket and slide the chassis away from the beznet. Ensure that the interconnecting leads are released from their purse locks to prevent damage being caused. 2-9. Service Position 2-10. Wire Dressing Position the A board as shown to g
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2-11. Picture Tube Removal 9 WARNING: 1 BEFORE REMOVING THE ANODE CAP 3 5 High voltage remains in the CRT even 7 after the power is disconnected. To avoid electric shock, discharge CRT before attempting to remove the anode cap. Short between anode and CRT 6 coated earth ground strap. 8 2 Coated Earth Ground Strap 4 1. Discharge the anode of the CRT and remove the anode cap. 2. Unplug all interconnecting leads from the Deflection yoke, neck assy, degaussing coils and CRT grounding strap. 3. Remov
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SECTION 3 SET-UP ADJUSTMENTS Carry out the adjustments in the following order : When complete readjustment is necessary or a new picture 3-1. Beam Landing. tube is installed, carry out the following adjustments. 3-2. Convergence. Unless there are specific instructions to the contrary, carry 3-3. Focus. out these adjustments with the rated power supply. 3-4. White Balance. Unless there are specific instructions to the contrary, set the controls and switches to the following settings : Note
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4. If the V.STAT magnet is moved in the direction of the (a) 3-2. Convergence and (b) arrows, the Red, Green and Blue points move as indicated below. Preparation: a b Before starting this adjustment, adjust the focus, horizontal B B b size and vertical size. Minimize the Brightness setting. a G G a Input a dot pattern from the pattern generator. R R b Horizontal and Vertical Static Convergence a Center dot R G R G B B R G B a b H.STAT V.STAT convergence Vertical Static Magnet b R B G
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Geometry Adjustment. YCH Adjustment Preparation: YCH VR + + Deflection Yoke Before starting this adjustment, adjust the horizontal and vertical static convergence. 1. Remove the deflection yoke spacer. 2. Tilt the deflection yoke as indicated in the figure below and TLV Adjustment optimise the geometry. Tilting the DY Up and Down will balance the upper and lower pin adjustment. + + TLV VR Tilting the DY Left and Right will balance the H-Trap Deflection Yoke adjustment. 3. Re-install the deflecti
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Layout of each control 3-4. Screen (G2), White Balance [Adjustment in the service mode using the remote commander] G2 adjustment 1. Input a dot signal from the pattern generator. 2. Set the Picture, Brightness and Colour to minimum. 3. Apply 175V DC from an external power supply to the R, G V.STAT Purity and B cathodes of the CRT. 4. Whilst watching the picture, adjust the G2 control [SCREEN] BMC (Hexapole) located on the Flyback Transformer to the point just before the flyback return lines disa
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SECTION 4 CIRCUIT ADJUSTMENTS 4-1. Electrical Adjustments SERVICE Service adjustments to this model can be performed using the supplied Offset-R (0, 15) Adj Remote Commander RM-887. Offset-G (0, 15) Adj R-Drive (0, 63) 25 How to enter into the Service Mode G-Drive (0, 63) Adj B-Drive (0, 63) Adj 1. Turn on the main power switch and enter into the stand-by mode. Peak-Freq (0, 3) 0 2. Press the following sequence of buttons on the Remote Luma-Delay (0, 15) 8 SC0 (0, 3) 3 Commander. White-Peak (0,
